Torque Curve b/w V6 vs. V8

[SpaceNeedle]

I just checked this weekend post reading this thread that 5K rpm is pretty much redline on the v8.

i am very rarely at redline

the v8 straight up goes. love it!

lol

 

[liqourish]

Its actually amazing that it can get to about 50mph VERY easily while still keeping the revs around 1700.

i get 50mph @ 1.699k revolutions :]



1GR-FE with 6 legs and 238ponies:dancin:

 

[offshorebear]

Its actually amazing that it can get to about 50mph VERY easily while still keeping the revs around 1700.

Offshorebear, how do you like the KO's after the month or so you've had them? Any power loss - as that is my main concern.

If there was power loss it was too small to notice. Same thing with the brakes. The tires are heavier and bigger, so there must be some amount of loss, but my butt dyno can't tell.

I've had no rubbing what so ever. What I thought was a little rubbing was my steering stops.

Besides the sticker shock, I have no complaints. Traction on and offroad is great and they are very durable. I regularly go over the rocks that destroyed my stock tires without fear.

 

[progress4m]

It is surprising to me that almost all discussions V8 vs V6 are taking to unpleasant and sometimes personal level… I thought we all here becouse we love and appreciate 4Runners for that they are, regardless V8 or V6 they have.
I think V8 and V6 are both great engines, they both have their pluses and minuses, but they both will give you great performance for what they are.
In addition, comparing V8 and V6 (considering that they are both modern and build by reputable company) is kind of silly (like comparing apples to oranges): V8 by default will be smoother and will have more useable torque (@ lower RPM) that is just the way it is (you can’t change the physics of internal combustion engine).
Therefore, if you are looking for towing and low end power you chose V8, if you do not tow and like higher revving engine you chose V6 that is your choice as a consumer. It that regards, I am disappointed that 5 gen do not have that choice… maybe they will in the future… but it probably will not happened until tree huggers will realize that there is plenty of oil underground and it is the cleanest and cheapest energy available today and most likely for the next 50 years.
I choose V8 becouse I tow my boat in the summer and my hunting gears in the winter. By the way, I did the same towing with my 2-nd and 3-rd gen of 4Runners (yes, I did that with 3.slow ), so I know V6 can do that. However, when I was looking for 4-th generation, I had a choice and knowing my needs I searched for V8.
Again IMHO both V6 and V8 in 4-th generation are great engines and there is no need for personal attacks.
:thumb3:

 

[RonMAIDEN]

It sure feels like the V8 guys get their painties bunched up quicker than the V6 owners. Why so serious? hehe

Those numbers that Thai posted shows why the V8 is only marginally quicker in the 1/4 mile but hang a heavy trailer on the rear and that's where you will see the diff.


Both engines are very competent and is kinda dumb to argue which is better when most people will buy what suits their needs .......or egos.

I'd be happy with either but then again I drive a 3rd gen which really could benefit from another 30hp or so.

 

[SpaceNeedle]

It is surprising to me that almost all discussions V8 vs V6 are taking to unpleasant and sometimes personal level… I thought we all here becouse we love and appreciate 4Runners for that they are, regardless V8 or V6 they have.
I think V8 and V6 are both great engines, they both have their pluses and minuses, but they both will give you great performance for what they are.
In addition, comparing V8 and V6 (considering that they are both modern and build by reputable company) is kind of silly (like comparing apples to oranges): V8 by default will be smoother and will have more useable torque (@ lower RPM) that is just the way it is (you can’t change the physics of internal combustion engine).
Therefore, if you are looking for towing and low end power you chose V8, if you do not tow and like higher revving engine you chose V6 that is your choice as a consumer. It that regards, I am disappointed that 5 gen do not have that choice… maybe they will in the future… but it probably will not happened until tree huggers will realize that there is plenty of oil underground and it is the cleanest and cheapest energy available today and most likely for the next 50 years.
I choose V8 becouse I tow my boat in the summer and my hunting gears in the winter. By the way, I did the same towing with my 2-nd and 3-rd gen of 4Runners (yes, I did that with 3.slow ), so I know V6 can do that. However, when I was looking for 4-th generation, I had a choice and knowing my needs I searched for V8.
Again IMHO both V6 and V8 in 4-th generation are great engines and there is no need for personal attacks.
:thumb3:

nice post

i think with cars it brings the child out of the man.

 

[Uneek]

Think of it another way...in 2010, which engine continues on and which engine goes into the trash can?? The 4.0L V6 gets dual VVTi. The 4.7L V8 iron blocked is trashed in favor of a new 4.6L V8. If the 4.7L V8 is so good, then why is Lexus/Toyota getting rid of it in favor a NEW V8 for the GX460?

I don't know why, I just found your post to be hilarious Thai. :lol:

 

[eskimochaos]

LOL I think 12 productions years is more than enough.

 

[Scoobs]

When the new 4R shows up at the local dealer I'll take it for a spin to see what I think of the improved 4.0. I know I drove the present 4.0 in a 4R and wasn't impressed compared to the 4.7, and that was before the 4.7 got VVTi. The only problem I will now have is that I won't be able to compare the "new" 4.0 to a 4.6 in the 4R.

Thinking of it another way I guess the real question is that if the "new" 4.0 is so good why did Toyota feel the need to put a 4.6 in the GX460?:snacker:

 

[thequickad]

Let's face it, if $ was not an issue, everyone would choose a V8. Why would anyone buy a V6? it's because 1) you cannot afford a V8 and 2) you cannot afford to buy gas to drive a V8. Is there any other reason? Oh! Yes, you are a tree hugger. Then why aren't you walking instead?

 

[Thai]

Let's face it, if $ was not an issue, everyone would choose a V8. Why would anyone buy a V6? it's because 1) you cannot afford a V8 and 2) you cannot afford to buy gas to drive a V8. Is there any other reason? Oh! Yes, you are a tree hugger. Then why aren't you walking instead?

To be honest, i would pick the V6 for a few reasons:
1. A more flexible 4wd system (multi-mode vs. fulltime)
2. Better fuel economy...although i could afford the gas of the V8, but why spend more if you don't have to, right?
3. Timing chain...this again is yet another savings down the road.
4. And did i mention how much i love the multi-mode 4wd system?!!

 

[ToyTech99]

The V8 is a BETTER engine. Not only because it is more powerful, it was designed with a more difficult life cycle in mind. Everything on it is built to last. Cast iron block, forged iron internal components and the Denso 32bit ignition system which attributes to its smoothness. The V6 has a generic toyota system. Not only is the V8 "physically" better and more stout but the electronics that surround it are better as well - case in point the spark plugs.

You say that like you actually know how the engineers were thinking when they designed the engines. Your post is nothing more than speculation. And it's also a weak argument. If your theory was correct, then the V8 would have a timing chain and the V6 would have a timing belt. Of course we both know the opposite is true, which goes completely against your silly theory that the V8 is built to last moreso than the V6. Sorry, nice try, but you fail.

 

[ToyTech99]

One thing that attracted me to the V8 4Runner was the iron block. I've had a few aluminum engines and I just don't like them. I don't think you can consistently get 200k+ miles from aluminum. They are noisier and you have to be really careful about overheating. Probably not an issue for most but I like the iron.

I just love the low end power. It's good for the soul!

I'm surprised that anyone would think an aluminum block is less durable than an iron block. FYI- there are a lot of advantages to using an aluminum block. There are very few disadvantages. And of course cylinder wear is one of those disadvantages. That's why cylinder bores are sleeved in aluminum engines and have been for MANY years now. That way you get all the benefits of an aluminum engine, along with the durability of an iron engine.

To say that you can't get 200K miles out of an aluminum engine is ridiculous. This isn't new technology. There are already a ton of aluminum engines on the roads with well over 200K miles.

Another point to consider-- for many years iron engines used aluminum heads and intake manifolds. Dissimilar metals expand/contract at different rates as teh engines heat up/cool down. So when you say that you have to be careful about overheating with an aluminum engine, I'd say that it's even more important in an iron block/aluminum head engine. But then again, who worries about overheating these days? If you maintain your vehicle, it's pretty much a non-issue these days.

 

[ToyTech99]

Let's face it, if $ was not an issue, everyone would choose a V8. Why would anyone buy a V6? it's because 1) you cannot afford a V8 and 2) you cannot afford to buy gas to drive a V8. Is there any other reason? Oh! Yes, you are a tree hugger. Then why aren't you walking instead?

I purchased my 4Runner brand new and paid cash for it. Money was not an issue and I still chose the V6 over the V8.

Why? Two main reasons:

1- I didn't want fulltime 4wd. I wanted the ability to run 2wd OR fulltime 4wd.

2- Better fuel economy. Why would I want to piss away extra money on fuel when I can have a more economical engine that will do everything I ask of it?

Back when I purchased my '04, the V6 actually made more HP than the V8. Sure, it made less torque, but I test drove them both and they performed remarkably similar out on the road. So the choice was obvious for me and I ended up with the V6. I also loved the location of the oil filter on the V6, which was one of those little plusses.

 

[Sporin]

I like both, I happened to choose a V8 for a number of reasons but that's no slag on the V6 by any means.

{shrug}

 

[Merle]

It is surprising to me that almost all discussions V8 vs V6 are taking to unpleasant and sometimes personal level… I thought we all here becouse we love and appreciate 4Runners for that they are, regardless V8 or V6 they have.

Well, when most everything is pretty much working fine and there's already little to disagree with (e.g. Toyota's are *great* SUVs) you gotta look at the little things which set the car and driver apart.

3/2 or stock? Snowflake or not? V8 or V6?

Otherwise, it'll be a REALLY boring discussion board.

 

[Will_4R]

To be honest, i would pick the V6 for a few reasons:
1. A more flexible 4wd system (multi-mode vs. fulltime)
2. Better fuel economy...although i could afford the gas of the V8, but why spend more if you don't have to, right?
3. Timing chain...this again is yet another savings down the road.
4. And did i mention how much i love the multi-mode 4wd system?!!

According to Toyatas maintenance menu, the V8 is a hair cheaper to maintain in the long run. I am sure the gas would offset that.

 

[ToyTech99]

According to Toyatas maintenance menu, the V8 is a hair cheaper to maintain in the long run. .

How so?

Yes, the plug changes are reqired as often on the V8. But did you factor in the timing belt replacement required on the V8? That is a much more expensive maintenance item than changing out the spark plugs.

My guess is that the V8 is more $$$ to maintain in the long run.

 

[Thai]

How so?

Yes, the plug changes are reqired as often on the V8. But did you factor in the timing belt replacement required on the V8? That is a much more expensive maintenance item than changing out the spark plugs.

My guess is that the V8 is more $$$ to maintain in the long run.

Or how about the exhaust manifold cracking? Not sure if it happens on 4runner V8, but the TLC and LX470 with the same engine has major issues with this. As stated, my brother's LX470 had both sides of the manifold cracked...each requiring at least $1000 to fix. Oh yeah, this is not in the "maintenance guide," but it is almost a guarantee that it will happen to the 4.7L V8 before 100k miles.

 

[vando45]

Or how about the exhaust manifold cracking? Not sure if it happens on 4runner V8, but the TLC and LX470 with the same engine has major issues with this. As stated, my brother's LX470 had both sides of the manifold cracked...each requiring at least $1000 to fix. Oh yeah, this is not in the "maintenance guide," but it is almost a guarantee that it will happen to the 4.7L V8 before 100k miles.

What model years? Apparently thats also a problem on the Tundra, but just the early years, 2000-2002. Not an issue for me as I put JBA headers on about 4 years ago.